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Just to make sure I understand the boost elbow adjustment that comes with the fuel plates:
loosen small allen plug to decrease boost
Tighten small allen plug to inclrease boost

After swapping in the fuel plate I now get near 40 psi at full throttle. After reading on the forum it sounds like anything over 35 on the stock turbo is just waisted effort. I was going to adjust the elbow screw to reduce the max pressure.

i know this isnt the elbow you're talking about, but on my truck i have a T fitting on the AFC housing that comes from the turbo wastegate. it has a small hole drilled in it and it looks like boost excapes here so im assuming thats for the wastegate control right? to up the boost i can drill this out a little more, or to decrease it i can fill it with JB weld right? or should i just buy the adjustable elbow?

i know this isnt the elbow you're talking about, but on my truck i have a T fitting on the AFC housing that comes from the turbo wastegate. it has a small hole drilled in it and it looks like boost excapes here so im assuming thats for the wastegate control right? to up the boost i can drill this out a little more, or to decrease it i can fill it with JB weld right? or should i just buy the adjustable elbow?

I don't remember seeing a hole on that fitting. Got a pic or better description of where it is on the AFC fitting?

ill grab a pic after supper. this truck is set up strange. instead of the WG sensing line coming off of the compressor housing, the WG sensing line hooks to that T screwed into the end of the AFC housing, then the last end of the T fitting is hooked to the intake manifold. its kinda strange, ill see if i can get a picture even though its packed down in there out of normal sight.

ill grab a pic after supper. this truck is set up strange. instead of the WG sensing line coming off of the compressor housing, the WG sensing line hooks to that T screwed into the end of the AFC housing, then the last end of the T fitting is hooked to the intake manifold. its kinda strange, ill see if i can get a picture even though its packed down in there out of normal sight.

That's actually normal on the 12V's. It uses boost pressure for the AFC as a way of controlling black smoke (or emissions purposes). But this hole is what I am wondering about.

ok i found out what i was thinking of. the T fitting has no hole in it. the little brass elbow hooked to the T fitting that goes to the waste gate does though, as well as a allen screw in it, so im assuming the previous previous owner put an adjustable fitting in it, even though the dumb dinosaur had no boost gauge to monitor how high it got. right now boost gets close to 30 psi or so, so ill re do the fuel plate, then adjust the boost to max out at around 35 psi and call it good for now untill i get a new clutch.

ok i found out what i was thinking of. the T fitting has no hole in it. the little brass elbow hooked to the T fitting that goes to the waste gate does though, as well as a allen screw in it, so im assuming the previous previous owner put an adjustable fitting in it, even though the dumb dinosaur had no boost gauge to monitor how high it got. right now boost gets close to 30 psi or so, so ill re do the fuel plate, then adjust the boost to max out at around 35 psi and call it good for now untill i get a new clutch.

My '94 WH1C turbo is making 38 psi without a boost elbow. Any thoughts on that? The plumbing for the pressure line to the waste gate is all intact. Seems like the waste gate is wired shut or something but it all looks normal.

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